Properties of Water

1. In a water molecule, the intermolecular forces are the a 1. In a water molecule, the intermolecular forces are the a. Ionic bonds b. Covalent bonds c. Hydrogen bonds d. Metallic bonds C

2. Intramolecular forces occur a. Inside the molecule b 2. Intramolecular forces occur a. Inside the molecule b. Between molecules A

3. Water is considered polar because a 3. Water is considered polar because a. It’s found at the north and south poles b. It has two positive ends c. It’s formula is H2O d. It has a negative end and a positive end D

4. The properties that make water different from other molecules of similar size include a. It’s solid at room temperature b. It’s liquid at room temperature c. It has a higher melting point d. b, c D

5. The reasons for water’s unique properties are a. It’s bent shape b 5. The reasons for water’s unique properties are a. It’s bent shape b. It’s polarity c. It’s abundance d. a and b D

6. In terms of density, water is unique because a 6. In terms of density, water is unique because a. It’s more dense as a solid than as a liquid b. It’s less dense as a solid than as a liquid c. It has no density d. Density = Mass / Volume B

7. Water tends to gather in spherical balls because of a. Capillarity b. Hydrogen Bonds c. Surface Tension d. Gravity C

8. Intermolecular forces occur a. Inside the molecule b 8. Intermolecular forces occur a. Inside the molecule b. Between the molecules B

9. In a water molecule, the intramolecular forces are the a 9. In a water molecule, the intramolecular forces are the a. Ionic bonds b. Covalent bonds c. Hydrogen bonds d. Metallic bonds B

10. Hydrogen bonds in water occur between the a 10. Hydrogen bonds in water occur between the a. Hydrogen of one molecule and the hydrogen of another molecule b. Hydrogen of one molecule and the oxygen of another molecule c. Hydrogen and oxygen in one molecule B

11. Water can undergo capillarity because a 11. Water can undergo capillarity because a. The capillary tubes are narrow b. Water has covalent bonds c. Water has hydrogen bonds d. a, b, c e. a, c E

12. Covalent bonds in water occur between the a 12. Covalent bonds in water occur between the a. Hydrogen of one molecule and the hydrogen of another molecule b. Hydrogen of one molecule and the oxygen of another molecule c. Hydrogen and oxygen in one molecule C

14. An unsaturated solution a. Can dissolve more solvent b 14. An unsaturated solution a. Can dissolve more solvent b. Can dissolve more solute c. Can’t dissolve more solute d. Will turn solid if more solute is added B

15. A supersaturated solution is created when a 15. A supersaturated solution is created when a. You dissolve more solvent b. You increase temperature to dissolve more solute, then cool the solution c. You add too much solute B

16. Molarity is a. 6. 02 x 1023 b. The unit for concentration c 16. Molarity is a. 6.02 x 1023 b. The unit for concentration c. The same thing as mols d. Represented by “m” B

17. As the temperature of a solution increases a 17. As the temperature of a solution increases a. The solubility of a solid solute increases b. The solubility of a gas solute increases c. The concentration increases d. a and c A

18. A dilute solution has a. Lots of solvent b. Lots of solute c 18. A dilute solution has a. Lots of solvent b. Lots of solute c. A small amount of solute compared to the solvent d. A small amount of solvent compared to the solute C

19. When a molecular compound is dissolved in water a 19. When a molecular compound is dissolved in water a. It separates into ions b. It separates into individual molecules c. It is surrounded by water molecules d. b and c D